The Waveguide Assembly, cataloged under National Stock Number 5985-01-043-4986, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-043-4986 |
| Primary Part Number | 10179186 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Tubing Wall Construction Style | SEAMLESS SINGLE TUBING SEGMENT |
| Flange Inside Height | 0.400 INCHES NOMINAL ALL FLANGES IN |
| Flange Quantity | 2 |
| Bend Angle in Deg | 45.0 SINGLE BEND E-PLANE |
| Style Designator | BEND TYPE |
| Waveguide Offset Distance | 4.240 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE SINGLE TUBING SEGMENT |
| Waveguide Inside Width | 0.900 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR |
| Operating Pressure | 15.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Flange Outside Height | 1.594 INCHES NOMINAL ALL FLANGES IN |
| Flange Inside Width | 0.900 INCHES NOMINAL ALL FLANGES IN |
| Thread Direction | RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES |
| Nominal Thread Size | 0.640 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN |
| Waveguide Outside Height | 1.594 INCHES NOMINAL IN |
| Waveguide Outside Width | 2.094 INCHES NOMINAL IN |
| Flange Depth | 0.225 INCHES NOMINAL ALL FLANGES IN |
| Flange Outside Width | 2.094 INCHES NOMINAL ALL FLANGES IN |
| Surface Treatment | CHROMATE OR COPPER ALLOY SINGLE TUBING SEGMENT AND FLANGE ALL SURFACES |
| Waveguide Inside Height | 0.400 INCHES NOMINAL IN |
| Thread Class | 2B ALL FLANGES ALL CONNECTION FACILITIES |
| Material | BERYLLIUM OR COPPER SINGLE TUBING SEGMENT AND FLANGE |
| Flange Connecting Facility and Quantity | 8 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES |
| Flange Style | CONTACT TYPE ALL FLANGES |
| Waveguide Longer Offset Distance | 2.630 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-01-043-4986 is a Waveguide Assembly, manufactured by Us Army Aviation and Missile Command, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-043-4986 has 2 manufacturer part numbers on file: X170S-502 (Microwave Engineering Corporation), 10179186 (Us Army Aviation and Missile Command).
Key specifications for 10179186: Tubing Wall Construction Style: SEAMLESS SINGLE TUBING SEGMENT; Flange Inside Height: 0.400 INCHES NOMINAL ALL FLANGES IN; Flange Quantity: 2; Bend Angle in Deg: 45.0 SINGLE BEND E-PLANE. 26 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-043-4986 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.